I was going through a previously searched BU roll of 1967 Canadian Centennial cents (wish the guy had worn gloves) when I found one of the coins had a completely different surface than all the others. The surface has a textured finish compared to all the others which are smooth. It's consistent on both sides. I've checked several rolls in the past but have never come across another one like this. What would have caused this? Textured: Normal Cent: Textured detail: Textured detail: Normal Cent:
Hard to tell what caused it. In the 1st pic, what is the mark to the right of the the right wing to the rim? A scratch or maybe struck thru a piece of wire?
Granted, you'd think so. But the bottom half of the coin looks exactly like what coins produced with rusty dies look like. And if the bottom is, then it stands to reason the top is too.
Below the left wing are light surface scratches. Barely noticeable unless it catches the light. Here's a close up of the obverse. Same effect .
Nope. I thought you meant the other left. That's a struck thru thread/wire(?) that Abe mentioned as well.
Maybe someone dropped it into some nitric acid. That does give coins a weird effect on the surface. Ice
I was thinking die issues as well. The biggest problem, though, is that this coin is starting to develop goop. Is it stored in a PVC holder? I don't think that coin is copper, like (some) 1982 and earlier cents, but it's developing green spots. There are 3 spots in the third pic, in the field, roughly between the A and the Z in "ELIZABETH", as well as some smaller ones scattered about.
The composition of '67 cents is .980 copper, .005 tin, .015 zinc. It's the same comp. since 1942. These were re-rolled and untouched for over 25 years. It's from a batch I bought a few months ago. The spots are on 75% of the coins because the original collector kept them in his basement until selling them to my dealer who stored them in his garage for 25 years. There were over a dozen five-gallon pails full of rolls. I bought the last pail he had since he's retiring. Some rolls were un-opened, some checked and re-rolled and some were rolls of coins pulled from circulation. As for the spots, I know have to deal with them.
